229515 has 32 divisors (see below), whose sum is σ = 435456. Its totient is φ = 101760.

The previous prime is 229507. The next prime is 229519. The reversal of 229515 is 515922.

It is not a de Polignac number, because 229515 - 2³ = 229507 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2092 + ... + 2198.

It is an arithmetic number, because the mean of its divisors is an integer number (13608).

2²²⁹⁵¹⁵ is an apocalyptic number.

229515 is a deficient number, since it is larger than the sum of its proper divisors (205941).

229515 is a wasteful number, since it uses less digits than its factorization.

229515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139.

The product of its digits is 900, while the sum is 24.

The square root of 229515 is about 479.0772380316. The cubic root of 229515 is about 61.2261603739.

The spelling of 229515 in words is "two hundred twenty-nine thousand, five hundred fifteen".